An evolutionary & developmental biology lab

Month: June 2013

Development of complex plumage patterns in birds

This paper is a detailed examination of the development of feather pigmentation.  Very interesting stuff.  The only problem is that lots of information is stuffed into a tiny Science paper.  I wish they published it in a long-format journal…

Muller-F used to be the sex chromosome before Muller-A took over

Beatriz Vicoso and Doris Bachtrog have a very interesting paper showing that the Drosophila 4th (dot) chromosome is homologous to the sex chromosome of more basally branching Diptera.  It seems that, early in Drosophilid evolution, Muller-A took over the role of the sex chromosome from Muller-F.  They also have an interesting discussion of how such takeovers could occur.

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